Updates to latest fastlane, Danger and travis-ci Xcode image

[messeb]

Updates the project template dependencies versions:

• fastlane: 2.107.0 (https://github.com/fastlane/fastlane/releases/tag/2.107.0)
• Danger: 5.7.1 (https://github.com/danger/danger/releases/tag/v5.7.1)
• travis-ci Xcode image: xcode10.1 (https://blog.travis-ci.com/2018-11-01-xcode-10-1-is-now-available)

[codecov-io]

Codecov Report

❗ No coverage uploaded for pull request base (master@4a4eace). Click here to learn what that means.
The diff coverage is n/a.

@@           Coverage Diff           @@
##             master     #1   +/-   ##
=======================================
  Coverage          ?   100%           
=======================================
  Files             ?      2           
  Lines             ?     31           
  Branches          ?      0           
=======================================
  Hits              ?     31           
  Misses            ?      0           
  Partials          ?      0

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[Wooder]

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